src/main/java/org/apache/commons/csv/Lexer.java (4 lines): - line 471: // TODO escape handling needs more work - line 496: case Constants.FF: // TODO is this correct? - line 497: case Constants.TAB: // TODO is this correct? Do tabs need to be escaped? - line 498: case Constants.BACKSPACE: // TODO is this correct? src/main/java/org/apache/commons/csv/CSVPrinter.java (1 line): - line 114: // TODO: Is it a good idea to do this here instead of on the first call to a print method? src/main/java/org/apache/commons/csv/package-info.java (1 line): - line 70: * can be set directly.